void is a keyword that means that a function does not result a value. … Void nil = null; (So far it is not interesting…) As a result type (a function with a return value of type Void ) it means that the function *always * return null (it cannot return anything other than null , because Void has no instances).
What is the difference between void and public void in Java?
public − This is the access specifier that states that the method can be accesses publically. static − Here, the object is not required to access static members. void − This states that the method doesn’t return any value.
What is the difference between a void and non void method?
“difference between void and non void methods in java” Code Answer. –void : does not return any value. this method doesn’t have a return type. … –non–void: MUST return a Value.
What is a void in Java?
void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void .
Is void equal to null?
void is a return type signifying no return. null is the absence of value.
What is public void?
public means that the method is visible and can be called from other objects of other types. … This means that you can call a static method without creating an object of the class. void means that the method has no return value.
Can we use this () and super () in a constructor?
both this() and super() can not be used together in constructor. this() is used to call default constructor of same class.it should be first statement inside constructor. super() is used to call default constructor of base class.it should be first statement inside constructor.
Is a void a method?
Void methods are essentially methods that lives on side-effects. If a method gave no output and produced no side-effects, no one would write it, and no one would call it.
What is true of a void method?
A void method is one that simply performs a task and then terminates. A value – returning method not only performs a task but also sends a value back to the code that called it. … It causes the method to end execution and it returns a value to the statement that called the method.
Is void a procedure?
Summary. A void method acts like a procedure. It does not produce an answer.
Can we have 2 main methods in Java?
The only way to have two main methods is by having two different classes each with one main method. The name of the class you use to invoke the JVM (e.g. java Class1, java Class2) determines which main method is called.
Is private a keyword in Java?
A Java private keyword is an access modifier. It can be assigned to variables, methods, and inner classes. It is the most restricted type of access modifier.
What is a void type method?
The void keyword allows us to create methods which do not return a value. … This method is a void method, which does not return any value. Call to a void method must be a statement i.e. methodRankPoints(255.7);. It is a Java statement which ends with a semicolon as shown in the following example.